STM32F2 kits

STM32 kits allows communicating with the embedded ST bootloader of STM32F205 and STM32F427 devices. It is possible to write the Flash memory to load code, and then execute it after reset.

Those QFP64 and QFP100 may suit other STM32 devices. Some breadboard space allows customizing the daughterboard for special needs, such as clock or voltage glitch electronics.

Python API example

The class scaffold.stm32.STM32 of the Python API provides methods to communicate with the circuit and setup tests very quickly.

from scaffold import Scaffold
from scaffold.stm32 import STM32

stm = STM32(Scaffold('/dev/ttyUSB0'))
# Load some code into Flash memory
stm.startup_bootloader()
stm.extended_erase()
stm.write_memory(0x08000000, open('program.bin', 'rb').read())
# Run the program
stm.startup_flash()

Example script

An example file in examples/stm32.py can be used to load and execute code onto a STM32F2 device.

$ python3 stm32.py -d /dev/ttyUSB0 --load program.bin --run
Communication initiated
Product ID: 0x0411
Possible device match: stm32f2xxxx
Get: 310001021121314463738292
Bootloader version: 3.1
Option bytes: ffaa0055ffaa0055ffff0000ffff0000
RDP: no protection
Erasing Flash memory...
Programming...
Verifying...
Flash memory written successfully!
Rebooting from Flash memory...